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  2. Nmap - Wikipedia

    en.wikipedia.org/wiki/Nmap

    Nmap is used for network reconnaissance and exploitation of the slum tower network. It is even seen briefly in the movie's trailer. The command Nmap is widely used in the video game Hacknet, allowing to probe the network ports of a target system to hack it. In Snowden, Nmap is used in the aptitude test scene about 14 minutes into the movie.

  3. Electromagnetically induced acoustic noise - Wikipedia

    en.wikipedia.org/wiki/Electromagnetically...

    As a static force, it does not create vibrations nor acoustic noise. However torque ripple (also called cogging torque for permanent magnet synchronous machines in open circuit), which represents the harmonic variations of electromagnetic torque, is a dynamic force creating torsional vibrations of both rotor and stator.

  4. Colors of noise - Wikipedia

    en.wikipedia.org/wiki/Colors_of_noise

    Noise that has a frequency spectrum of predominantly zero power level over all frequencies except for a few narrow bands or spikes. Note: An example of black noise in a facsimile transmission system is the spectrum that might be obtained when scanning a black area in which there are a few random white spots. Thus, in the time domain, a few ...

  5. Quantization (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Quantization_(signal...

    Because quantization is a many-to-few mapping, it is an inherently non-linear and irreversible process (i.e., because the same output value is shared by multiple input values, it is impossible, in general, to recover the exact input value when given only the output value).

  6. TCP sequence prediction attack - Wikipedia

    en.wikipedia.org/wiki/TCP_sequence_prediction_attack

    A TCP sequence prediction attack is an attempt to predict the sequence number used to identify the packets in a TCP connection, which can be used to counterfeit packets. [1]

  7. Noise gate - Wikipedia

    en.wikipedia.org/wiki/Noise_gate

    An Alesis Micro Gate noise gate. A noise gate or simply gate is an electronic device or software that is used to control the volume of an audio signal.Comparable to a limiter, which attenuates signals above a threshold, such as loud attacks from the start of musical notes, noise gates attenuate signals that register below the threshold. [1]

  8. Deep Note - Wikipedia

    en.wikipedia.org/wiki/Deep_Note

    The sound is used on trailers for THX-certified movie theaters, home video releases, video games, and in-car entertainment systems. The Deep Note was partially previewed on the opening track of the 1983 album The Digital Domain: A Demonstration, where it was included among sound effects that were combined with the Deep Note itself.

  9. Dynamic range compression - Wikipedia

    en.wikipedia.org/wiki/Dynamic_range_compression

    The louder sounds above the threshold remain unaffected. Some compressors also have the ability to do the opposite of compression, namely expansion. Expansion increases the dynamic range of the audio signal. [3] Like compression, expansion comes in two types, downward and upward. Downward expansion makes the quiet sounds below the threshold ...